He was born in Redwood City but grew up in Chino where he played baseball in Chino.[2] Chino High retired his number - #11 - in a ceremony where he credited "...his father for instilling in him the love of the game and his mother for taking him to practices and games."
He was then traded after the 2003 season to Tampa Bay Devil Rays in exchange for Brandon Backe.[7] In 2004, he batted only .215 for the Devil Rays, with a .266 on-base percentage.[5]
He was traded to the Chicago White Sox for a minor leaguer on July 31, 2005.
On October 25, 2005, Blum hit a home run against the Astros at Minute Maid Park in the top of the 14th inning that served as the go-ahead run in the eventual victory for the Sox in Game 3 of the World Series.[8]
On April 11, 2008, a monument celebrating the 2005 World Series was unveiled at U.S. Cellular FieldinChicago, featuring bronze statues of five players. Blum is one of them, commemorating his tie-breaking home run. The home run would forever cement his place in White Sox history.[9]
On November 20, 2007, Blum signed a $1.1 million, one-year contract with the Houston Astros. The deal also included a club option for 2009.[11]
Blum returned to the Astros in 2009 and played mostly 3B for Houston. He hit 10 home runs that season, drove in 49 runs and was known for playing excellent defense at all the infield positions.
On October 30, 2009, Blum re-signed with the Astros. The contract was worth $1.5 million for the 2010 season and included a mutual option for 2011, which would be worth $1.65 million that was declined, making him a free agent.
Blum suffered a season-ending injury to his elbow in July 2010 while putting on his shirt after a game.[12] He had this to say: "There are probably 90 percent of us in the big leagues that have loose bodies floating around. It just so happens that after the game, it tightened up on me. The shirt had nothing to do with the damn injury."[13]
On November 15, 2010, Blum signed a two-year contract worth $2.7 million with the Arizona Diamondbacks. In 2 years with the Diamondbacks, he appeared in a total of 40 games out of 326 possible games due to injury. He was released by the Diamondbacks on July 20, 2012.[14]
On January 12, 2013, he was named a color analyst of the Houston Astros for Comcast SportsNet Houston, where he worked with Bill Brown and Alan Ashby. In 2017, he was teamed with a new play-by-play man in Todd Kalas.[15] Blum and Kalas have served as broadcast partners for the Astros (under AT&T SportsNet Southwest) since 2017.[16]
